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Global warming could be harder on marine life than people. Curbing the trend will require some more advancements still. Geoengineering will be something that will be required in the future if humans are to maintain a harmonious existence.

Winters here in Canada are getting harder on ski-dooers and probably stranger and more dire else-ware. winter seems to be halfing every 15 years here in canada at even faster pace by the year. Back in y2k there was an article that mentioned 500 thousand tons of co2 is emitted each year by humans.

Once you reach the tipping point the atmosphere will expand too far from the heat and get lost to space possibly diminishing the solar shield that protects us.”NASA claimed the magnetic shield is weakening at 5% per decade”. The runaway chain reaction might be too hard to stop once the lakes and river beds unthaw releasing alot of methane.

When the last tree has been cut down, the last fish caught, the last river poisoned, only then will we realize that one cannot eat money. -Native American saying

Some ideas sofar

White roofs on houses / roads to increase albedo and reflect some of it back out of the atmosphere. aluminum powder can help in the paint.

Nuclear powered Underwater Icecube Maker in the artic or perhaps a giant space laser, to make giant iceburgs that grow underwater from the top down in a gradual underwater growing process(added salt would be a benifit for retaining more cold like a capacitor).

There is also an old American gold mine mess in the NWT full of 237,000 tonnes arsenic that could probably kill the entire planet too. Canada keeps it refrigerated for a few million tax dollars each year. 900 million estimated cost to cleanup probably more though.